If a first tap is detected on a touch screen of an electronic device when the touch screen is in a black screen state, the touch screen displays a fingerprint pattern in a target display area to prompt a user to enter a fingerprint in the target display area. If the electronic device is picked up when the touch screen is in the black screen state, the touch screen displays the fingerprint pattern in the target display area to prompt the user to enter the fingerprint in the target display area.